The EPB integrated system is based on an Electronic Control Unit (ECU) and an actuator mechanism. The brake caliper itself provides a connection between the hydraulic actuation of the foot brake and electrically actuated parking brake. The holding mechanism is activated by the driver via a button, which in turn makes brake pads electrically apply onto the rear brakes.
The parking brake is operated by the actuator, which is screw-fixed directly to the brake caliper housing, and actuated via a switch in the vehicle interior. That eliminates the need for hand brake lever and cables, providing multiple advantages such as greater room inside the vehicle, simpler installation of EPB on vehicles, prevention of issues related to mechanical wear or temperature problems. All this ultimately results in brake power improvement in all conditions.